Built for protection against overloads and short circuits, the ABB XT4HU3150AFF000XXX is a 3-pole, 150A molded case circuit breaker rated 600VAC and 600VDC. Interrupting rating is 25kA at 600VAC. The XT4 frame uses panel mounting and bolt terminals. Thermal magnetic trip provides fixed thermal and fixed magnetic settings with long-time and instantaneous functions. Approvals include UL, CSA, ATEX, CE, VDE and IEC.
Should I size ABB XT4HU3150AFF000XXX by its 150A rating or its 250A frame current?
Use the 150A rated current when selecting the breaker for the circuit. The 250A frame current describes the frame capacity, not the breaker's rated current.
Can this breaker be selected for AC or DC service?
The breaker is rated for both 600VAC and 600VDC. Match the circuit's voltage and AC or DC operation to the applicable voltage rating, and evaluate interrupting capacity separately.
What protection does the thermal-magnetic trip offer, and can I adjust it?
The thermal-magnetic trip provides long-time overload protection and instantaneous short-circuit protection. Both thermal and magnetic settings are fixed, so select it for applications that do not require field adjustment of those trip settings.
What size and weight should I account for in the installation layout?
The breaker measures 6.3 in high, 4.13 in wide and 3.25 in deep, and weighs 4.38 lb. Use these dimensions for the physical layout and account for the weight when planning mounting support.
What does the three-pole configuration mean for wiring layout?
The breaker has three poles and a three-phase rating. Plan the wiring layout around three separate pole connections.
What do bolt terminal connections mean for installation?
Bolt terminals make the electrical connection through a bolted joint. Allow access to those joints when laying out the installation.
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